class_docstr: This class holds the common method for configs.
  
  A config object can be instanciated with keyword arguments and
  updated on call with keyword arguments.
docstr: Copy this config object into another
docstr_tok: ["Copy","this","config","object","into","another"]
code: def copy(self):
      """Copy this config object into another"""
      return deepcopy(self)
  
imports: from copy import deepcopy
  from pygal import formatters
  from pygal.interpolate import INTERPOLATIONS
  from pygal.style import DefaultStyle, Style
label_desc: Use image node_id 5 for calling the BaseConfig obj's underlying member method code with example usage: obj.copy() and returns: deepcopy